@visactor/vchart/esm/data/transforms/treemap.js

charts lib based @visactor/VGrammar

import { flattenNodes, TreemapLayout } from "@visactor/vlayouts";

import { DEFAULT_HIERARCHY_ROOT } from "../../constant/hierarchy";

export const treemapLayout = (data, op) => {
    if (op.getViewBox()) {
        const res = new TreemapLayout(op).layout(data, op.getViewBox()), nodes = [];
        return flattenNodes(res, nodes, {
            maxDepth: null == op ? void 0 : op.maxDepth
        }), nodes.forEach(((datum, i) => {
            datum && [ DEFAULT_HIERARCHY_ROOT, "name" ].forEach((key => {
                datum[key] = datum.datum[datum.depth][op.nameField];
            }));
        })), nodes;
    }
    return [];
};
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